1.15. Setting up Samba as a print server

Procedure

1. Edit the /etc/samba/smb.conf file:

   1. Add the [printers] section to enable the printing backend in Samba:

      [printers]
              comment = All Printers
              path = /var/tmp/
              printable = yes
              create mask = 0600

      重要

      The [printers] share name is hard-coded and cannot be changed.

   2. If the CUPS server runs on a different host or port, specify the setting in the [printers] section:

      cups server = printserver.example.com:631

   3. If you have many printers, set the number of idle seconds to a higher value than the numbers of printers connected to CUPS. For example, if you have 100 printers, set in the [global] section:

      rpcd_spoolss:idle_seconds = 200

      If this setting does not scale in your environment, also increase the number of rpcd_spoolss workers in the [global] section:

      rpcd_spoolss:num_workers = 10

      By default, rpcd_spoolss starts 5 workers.

2. Verify the /etc/samba/smb.conf file:

   # testparm

3. Open the required ports and reload the firewall configuration using the firewall-cmd utility:

   # firewall-cmd --permanent --add-service=samba
   # firewall-cmd --reload

4. Restart the smb service:

   # systemctl restart smb

   After restarting the service, Samba automatically shares all printers that are configured in the CUPS back end. If you want to manually share only specific printers, see

Procedure

1. Edit the /etc/samba/smb.conf file:

   1. In the [global] section, disable automatic printer sharing by setting:

      load printers = no

   2. Add a section for each printer you want to share. For example, to share the printer named example in the CUPS back end as Example-Printer in Samba, add the following section:

      [Example-Printer]
              path = /var/tmp/
              printable = yes
              printer name = example

      You do not need individual spool directories for each printer. You can set the same spool directory in the path parameter for the printer as you set in the [printers] section.

2. Verify the /etc/samba/smb.conf file:

   # testparm

3. Reload the Samba configuration:

   # smbcontrol all reload-config